Combined type-writing and computing machine.



APP1ICATION FILED MAR. 10. 1913 Patented Apr. 2, 1918.

8 SHEETSSHEET l.

G. O DEGENER. COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILE D MAR. I0, I9I3.

Patented Apr. 2, 1918.

G. O. DEGENER. COMBINED TYPE WRlTING AND COMPUTING MACHlNE.

APPLICATION FILED MAR.\0|19\3.

Patented Apr. 2,1918.

8 SHEETS-SHEET 3- G. DEGENER. COMBINED TYPE WRI'HNG AND COMPUTING MACHINE.

APPLICATION FILED MAR-10. 1913- 8 SHEETS-SHEEI 4.

Patented Apr. 2, 1918.

G. O. DEGENER. COMBINED TYPE WRlTlNG AND COMPUTING MACHINE.

H llLl mm Q 8 SHEETS-SHEET 5- Patented Apr. 2, 1918.

APPLICATION FlLED MAR-10.?913- l I 1 I l I IL G. 0. DEGENER.

COMBINED TYPE WRlTlNG AND COMPUTING MACHINE.

, APPLICATION FILED MAR. l0. 9]3. I "1,261,107. Patented Apr. 2,1918.

G. O. DEGENER. COMBINED TYPE WRITING AND COMPUTING MACHINE.

' APPLICATION FILED MAR. 10. 1913. 1,261,107. Patented Apr. 2,1918.

8 SHEETS-SHEET 7.

e. 0. DEGENER. COMBINED TYPE WRITING AND COMPUTING MACHINE.

APPLICATION FILED MAR. 10. 1913- 1 ,26 1 1 O7 Patented Apr. 2, 1918.

8 SHEETS-SHEEI B.

IIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIIP GUSTAVE O. DEGENEB, OF NEW YGEK, N.

r, MACHINE GOMPA]. on NEW roan, n.

TOR IQ UIJDERWOOD COMPUTING GRTL GRATIQN CE H.137! YCRK.

COMBINED TYPE-VIRITING AND OGll'IPUTING MAGEINE.

Application filed March 16, 1913.

To all whom it may concern:

Be it known that I, GUSTAVE O. Dnennnn, a citizen or the United States, residing in New York city, in the county of New York and State of New York, haveinvented certain new and useful Improvements in Combined Typed Writing and Computing Machines, of which the following is a specification.

This invention relates to a combined typewriting and computing machine of the general type in which a typewriting and con puting action can be carried on concomitantly under the control of a single set of numeral keys, and is an improvement on my application, Serial No. 728,803, filed October 31, 1912.

In the general type of machines on which this is an improvement, the numeral keys when actuated o crate type actions to print the number, anc, at the same time, enable the setting of index pins in a valuating mechanism to determine the extent of rotation of the computing wheels of one or more computing heads by a source of power, to correspond with the particular numeral keys struck.

in prior types of machines or" this character, the numeral keys actually perform the work of setting the index pins. In the present case, however, the numeral keys are merely used to select the particular pin to be and are connected to bring into play amomatic power-actuated mechanism for performing the actual work of setting the pins, and thus relieving the numeral keys of this burden. this means also, the numera keys can be freely actuated without ac'i' ally setting the index pins, unless the source of power mentioned is brought into play.

Heretoforo the control of the eh ectiveness of the numeral keys to govern the action of computing mechanism has been controlled by the connection and disconnection or" each and every numeral key to and from the computing mechanism. This was. in cer ain instances, controlled automatically from the carriage. In the present case, the operative effectiveness of the numeral keys to set in motion the computing mechanism, is governed by the carriagecontrolled shitting between effective and ineilective positions, of a light tripper w ich is universally actuable by all of the numeral keys.

Specification of Letters Patent.

nism and the Patented Apr. 2, 1916.

Serial No. 753,2li4.

his tripper controls the bringing into play of the source of power above-mentioned, so that when the tripper is in its inetlectii e position, the source of power will not be efi'ective to set the pins, and, hence, the numeral keys may be actuated without bringing the computing mechanism into action. The effectiveness of tr e tripper is governed from the carriage by automatic mechanism acting to determine computing zones, which in turn may be silenced or rendered effective at will by manual controlling means.

'When a numeral key is actuated to start the runnin up of a number on one or more computing neads, it essential that the traveling elements of the computing heads, such as the master wheel or the set of computing wheels, should be locked against travel to prevent an incorrect or disrupting action. It is likewise advisable to lock the type writer carriage, which controls, in a way, the movement of the traveling elements of the computing heals. Hence in this in en tion, means is provided which is brought into play automatically at the striking of a numeral key, for locking the trai'eling elements of the computing heads and the traying typewriter carriage against a teetins; movement. Further, in order that other numeral keys may not be actuated to start anew computation until the computation under way is completec, there is provided, in this case, a locking mecl'ianism which positively prevents of the numeral keys from being actuated until the running up of a number on the computing heads when once started, is entirely completed. This applies not only to the other numeral but also to the one just struck, as the loci means is supplementary to the lockin means connected to each numeral key, taking the place of the same just as soon as the numeral key eu;ned to its normal position, and remaining in action until the current computing action taking place ceases.

Other features and advantages will hereinafter appear.

In the accompanying drawings Figure 1 is a skeleton perspective view showing the general connection of one of the numeral keys to the valuating mechameans for actuatin the same.

Fig. 2 is a detail vertical section showing the relation of the tripper Q0 the locking 'the general driving train from the motor to the master wheels and tens-carrying mechanisms of the computing heads, together with the means for storing energy in the supplementary source of power which starts the computing mechanism in action after a numeral key has been struck to bring V the same into play. 7

Fig. i is a vertical skeleton section showing the relation of the locking means for preventing a travel of the traveling elements of the computing heads, so that the latter will not have a feeding movement while the computing action is going on.

Fig. 5 is a skeleton perspective view showing the automatic and manual means for controlling the efiectiveness of the numeral keys to actuate the computing mechanism to compute. The manual portion of this controlling means is shown adjusted to such a position that the automatic carriage-controlled means can be effective to permit the numeral keys to start the computing mechanism when the carriage is in a computing column or zone.

Fig. 6 is a detail view in front elevation of portion of the controlling mechanism shown in ig. 5, showing it shifted to such a position that the automatic part thereof will be inefiective to enable the numeral keys to govern the action of the computing mechanism.

Fig. '4' is a vertical section taken from front to rear of the machine, with parts omitted for the sake of simplicity, and showing the general type action with its relation to the carriage, and also showing the means for preventing the traveling move mentof the carriage while a computing action is going on.

Fig. 8 i a vertical section through one of the computing heads taken from front to rear.

Fig. 9 is a fragmentary plan view of a portion of the tens-carrying gearing for carrying over tens from computing wheels flower denomination to computing wheels of higher denomination.

Fig. 10 is a skeleton perspective view of the mechanism for locking the carriage against a traveling movement while a computing action is going on.

Fig. 11 is a skeletonplan View, partly in section, of the right-hand end of the machine, and showing the valuating mechanism including the index wheel with its settable index pins and the means for selecting and setting the pins to determine toe extent of rotation of the computing wheels.

Fig. 12 is an end view in elevation showing the cluster of selectors with the interponents which are positioned thereby to enable the setting of the index pins.

Fig. 15 is a fragmentary perspective view showing the means for supporting the floating interponents with the universal hammer or striker for actuating the interponents.

Fig. M is a rear view in elevation showing the relation of the index wheel to the 'pur wheel for driving the same and the SO hitching mechanism for connecting the spur wheel in driven relation with theme- Fig. 15 is a horizontal section with parts broken away to show the underlying structure, and disclosing the relation of one of the traveling elements of a computing head, in this instance, the master wheel to the car riage, whereby the master wheel is given a step-loy-step movement through the successive wheels of the computing head.

Fig. 16 is a detail perspective view showing the arrangement of the 'ibrating lever shown in Fig. 15, whereby the latter is actuated from one of the tappets on the car riagc.

1? is a fragmentary perspective view showing the controlling means, which governs the bringing into play of the auxiliary so rcc of power, which enables the setting 100 of the pins selected by the numeral keys.

Fig. 18 is a detail perspective view showing the relation of the valuating pin-wheel to the spur wheel which drives the same whereby the spur v'ieel can rotate idly in the gap left by one of the pins which has been previously set up, so that the pin-wheel will remain idle while the spur wheel keeps on rotating.

Fig. 19 is a skeleton top plan view showing the locking means for preventing a traveling movement of the traveling ele ments of the computing heads during a computing action, the locking meansv being shown in its effective condition.

Fig. 20 is detail of one of the steps or ta-ppets which controls the vibratory movement of th traveling element of one of the computing heads, which also controls 7 the effectiveness of thenumeral keys to gov- 12o ern the operation of the con'iputing mechanism.

Figs. 21 to inclusive, are detail side views in elevation, showing the normal and the several active pos tions tl e parts which control the return to thei. ine-fe position of the several locking the traveling elements of the after the computin action has ceased.

mechanism also supplies the necessury eiitype actions, but al o are connected to conei'gy to the supplementary source of power trol the c mputing mechanism oh which is stored up for a future con1puti.1g ates C011 action. mechshi n.

Figs. 26 and 27 s nume effective positions 01 the c 17 (Figs.

the clutch-shitting latch. which in Figs. 28 to 30, inclusive 1 thaws on a l 1 sections through the selectin pi I mechanism, whereby the pie to ing or index Wheel are -ei 1.3 res of these figures, 28, the ps1 22 their normal unacti atd p to brim the correspohdih the path of the st:

. 7 third 0t these figures, 80, shows the 1 1 i1 after the step shown in 2hr, t the hammer or stri er has been acti. l1

has set u a new "Jill Corr-es iohdin particular numeral hey actuated.

Fig. 81 is a diagrammatic View conputih 11321 the relation of the ihterpohefs to t- A by a source of on the pii Wheel, whereby these "r pom to ents when in their actuated gosition may he cenimed aside during the rota the pin-Wheel.

Figs. 82 and 33 are top piah ViG'WS, showing the relation of one of the gin interpoheiits to the pin-Wheel. in th figure, the interpoh ht is shown tion of setting the opposed ph former figure the inter 30118i1t the position occupied durin th the pin-Wheel, Where it i, l

ieo

rate parts of this intent in the form shown iithe cates alphabet keys, and (Fig. 7), which are moon 7 3 and act When depressed i, so as tyJ-e oar interponent --1 it 21 w. against the iiont side of a lateo @161' at I I \v v ed to rotate a anie e at u inclusiv mounted to taVel on t after )1 machine. ihe ti carriage T is con mechanisn indicated in A metal 9, and including a nected "o the cari'i g ing Wi h the tack 1., w contiohed is its amen.

0'1 Wheel 12, W 2% no 13 and a fire 50 by a lllli lnt cated at the by a heel 16 Paiticulai- 1 to the fixed will he subsequen 2t tra'eiing "ne whi e a computing is numeral ke 35, which extends pendings t 36 in the iuh lades are arranged radlally, 130

wheel 53.

All.

0 that when one selector is actuated its in- "erfering blade will oass across the central xis of the hub 3d, preventing any other seector from being fully actuated.

It will be noted that the hammer or strike. 23, which acts asan actuator for the interponents 22, is not only arranged to plunge them forwardly to set the pins 2d, but is also arranged to return the interponents to their normal positions. For this purpose, as will be seen by reference to Fig. 13, the actuating hammer is shown in the form of two spaced 3. and 33, secured on a rod 39. which is slidingly mounted in beari1 40 and norn'ially opposed to a m -.e niout h wo d actuate an interponent t A n, by a spring ll.

i oring setting-up motion of the actuator or hammer 23, the ring 37, which is guiced for movement by a bar-and-slot argement 42, engages the car 32 of the particular interponent which happens to be shifted to its effective position. During a return movement of the actuator or hammer 23, the other ring, 38, which is mutilated engages a shoulder 43 on the particular interponent which has been previously actuated to set up a pin.

In order to operate the actuator or hammer 23, the rod 39 has secured thereto a block 44-, which is connected by a link 15 to a cam. arm d6 on a shaft 47. rhe shaft LT (Figs. 1 and 11), is n rmally under tendency to rotate, owing to a spring d8, which forms a supplementary source of power, and tends to raise a bar l9 having a rack engaging a pinion 51 on the shaft L7. The shaft l7, however, is prevented from rotating by a locking dog 52, which engages a ratchet wheel 53 connected to the shaft l7. The ratchet wheel 50, while not fixed on the shaft this connected so that it will prevent a rotation of the shaft under the propulsion of the spring @8, just so long as the dog 52 is in engagement therewith, but will permit a rotation in the opposite direction.

For this purpose, the ratchet wheel 53 is provided with a one-way crown gear or clutch 54, which is engaged by a correspond ing clutch splined on the shaft 47 and normally held in engagement therewith by means of a spring 56. This arrangement is to enable the subsequent counter-rotationof the shaft- 47 to restore the power in the spring without disturbing the dog 52, which is normally held in engagement with t 116 ratchet wheel 53 by a spring 57. l he ratchet wheel 53 is PEQVGHCQCl from reverse rotation by a spring-pressed pawl 241.

In order to trip the dog 52 and permit a rotation of the shaft L7, connections are provided whereby any one of the numeral keys 2 may release the from the ratchet For this purpose, the rods 19 which are connected to the numeral ke s 2 as 1 1 7F above GXDlfllIlQd extend throu h slots 08 Wm. i. 7 b (i o; in a collar 59 on a hub 60.. The colar 59 lies in the path of the blocks 20, so that when any one of the numeral keys is depressed to shift the corresponding selector 21, the collar 59 with ts hub 60, will be forced back against the tension of a spring 61. which is mounted on a rod SllCllIl 1n 1 1 a UGZLllDgS 62 and connected to reciprocate with the hub 60. This hub has connected thereto so to actuate the same a lever 63 v o 1 I pivoted intermediate its ends and having at one end a tr oper 64;, shown in the form of a plunger extendin to a position in oooosl- L Q o L l N non to an adgustablc contact screw (a), mounted on the dog It will thus be seen that when any one of the numeral keys is actuated, so long as the trlpper 6% is in opposition to the contact screw 65, then the dog 52 will be forced out of engagement with the ratchet wheel 53 against the tension of its spring 57, thus permitting a rotation of the haft 47. Hence the shaft l7 Wlll draw on the link 45 to actuate the hammer 23, so that the latter will force forward the particular interponent shifted into play and corresponding to the numeral key actuated, so that it will set the apposite pin 2% on the Yaluating wheel.

In order that the dog may return to its cdective position and catch the ratchet wheel it has made a fifth of a revolution, there i provided on the shaft 4-7, a collzr 66 provided with a deflector 67 (Figs. which will come up in time to ripper 64: up out of the path of 1 contact screw 65, in order that the spring 57 may return the dog to its efiective position where it will catch the next tooth on the ratchet wheel 53. There are five teeth on the ratchet wheel 53, located at onelifth of the pitch circle from each other, so rat the extent of movement of the shaft 47 is just one-fifth of a revolution.

It may be noted in passing that the deflector 6? not only forces the tripper at out of the way of the dog 52, but also shifts it to an ineffective position, so that if by any chance a numeral key should be struck dura computing action by the previous striking of a numeral key, the tripper 6% will be operates idly without actuating the dog 52, thus preventing the piling of one com utation on top of another. In other words, the numeral keys, afterhaving once incited the computing mechanism to action, a e rendered ineffective to start a further computation until the computation under Way has been completed.

Before considering other actions which are started by the rotation of the shaft 47 at the actuation of a numeral key, it would be well to consider how the valuating mechanism including the index pin-wheel 25 is driven from the source of power indicated by the electric motor 28. N rmally, that is to say, when no numeral key is actuated, it will be seen by reference to sigsl l and 18, the pin which was most recently et up, forms a gap in the series of pins, such that a spur-wheel 68, which is ai a-nged to rotate the pin-wheel "5 b I en 'ag' ment, with the the gap formed by this set-up pin, so the spur-wheel 63 may rotat idly 3 engaging any of the pins 2%, and t without having any capacity to rotate the pin-wheel 25.

ther words, the gear formed by t is mutilated a 'nterrupting o l, u 1 60 and 6 ln he pins the point of the set pin, the drive between the spurpin-wheel 25. llhen the shaft is rotated, as above c around cam 69 (Figs. 1, l e anc 17), which cam carries a bearing role" 79 arranged to engage pin-restorer- Tl, ill the term of. a finger, which is located 111 opposition to the set pin forming the gap inch the sour wheel 58 rotates il;

shaft it nn-restorer Tl against the tenit the pin-restorer will force the set 'pin irom its set posiion projecting on the same lows, thereby completing the this point. if, by any chance, the reel 68 should happen to have one 0" th lying in the path of or articular pin when movn'u veinent ing from its set to its onset position, the our-wheel, which, will be seen by reference to Fig. 1-1., is fixed to a slidinglymounted shaft '33, wi-i recede against the 40 tension of a spring 7%, normally holding the spnrwheel with it to o ojccting into the pitch circle of the g o med by the pins icel '9 recedes, it will be sh a beveled cam 75, which e th of the spnrgear 6 space between two t "We alincment with t 7 Joel projected from it 0 its unset position, so tha tliere v' formed a positive driving conned tio en tne spur-gear 68 ant, the pins of 'nceX w reel 25.

engaging a finger on a shifting lever 81, as to hold the clutch 7'? normally in its oil; -e igaged position against the tension of however, th shaft 457 rotates the map or projection 79 on the cam 6, will .rxe from beneath the linger 80, so that i dip which located just eyond the ramp permits the spring 82 to draw the hitting l ver 81 over. The upper end of the ever which engages in an annular groove m the clutch 77 will then shift the clutch 77 into en 'agem-e 'it with the clutch element 78, and thus cause a driving connection between the bevel gear '76 and the shaft 73, so that the spur-wheel 68 may be rotated to rotate the index wheel 25, an amount lependent on the particular pin 24: which is set up at the time that the previously set pin was unset. That is to say, the pinwheel 25 will be rotated until the blank formed by the just set pin comes in opposition to the spur-wheel 6S, wnen the spurwheel will once more rotate idly in the gap thus formed.

The bevel gear 76 is driven from the motor .28 by meshing with a bevel 83 3) mounted on a shaft S-l, which is connected by a pair of bevel gears 85 and S6 to the shaft 87 of the motor 28.

The valuating or Pinwheel 25, which has receives a variable rotation from the actor 28 depending upon the particular .umeral key actuated, is arranged in turn '0 rotate the computing wheels of the comting and For this purpose, the value-ting or index wheel 25 is secured t 88. which also has fast thereon, a r 89 r eshing with a bevel gear 90 91. The shaft 91 is conn cted to ll'lYC a vertical shaft 92 by intermeshing bevel gea s 93 and The shaft connected to drive masterwl l shafts and 96, one for each coinpu head. For this purpose, the masterwheel shafts have secured thereto, respectively, bevel gears 97 and 98, the former of which meshes with a pair of op ositely-face, bevel gears 99 and 100, and the latter of which meshes with a pair of oppositelyfaced bevel 101 and 102. The pairec bevel gears are arranged to drive their associated master-wheel shafts in opposite di- "ections, according to which one is connected driven relation with th shaft 92. That to say, the bevel gears 99 to 102, incluloosely mounted on the shaft 92 nt com tible thereto by means of clutches. noi ated in connection with the comouting .5. eat by the numeral 103, and m connection with the computing head 2'? by the nu meral 10%. These clutches are splined on the shaft 92, so as to rotate therewith and yet be capable of shifting between the paired and having bevel gears,"s0 as to connect either one in each pair with the shaft 92. These clutches may also occupy intermediate positions corresponding to the disconnection of both the bevel gears in each pair from driven relation with the shaft 92.

Each master-wheel shaft is arranged to drive a master wheel 105 secured thereto radiating teeth arranged to engage inwarc ly-projecting teeth on a series of computing wheels 106 (Fig. 8), which also have outwardly -projecting teeth to form gear wheels 107which mesh with gears 108 connected to dial wheels 109, which are arranged to exhibit their numbers through sight apertures 110 in the computing head casing 111. "1'1 vidcd between each master wheel and its computing head, so that the master wheels may successively actuate the several computing wheels of each head. Either the master wheel may move or the set of computing wheels may travel. In the case of the computi 1g head 26, the set of wheels is shown to be connected by a latch 2 12 to the carriage 7, so as to travel therewith relatively to the stationary master wheel. In the case of the computing head 27, the set of computing wheels is shown to be stationary and the master wheel is mounted on a slide 112, to orm the traveling element. This slide is a; ed to be reciprocat-ed by a lever 113, which, as will be seen by reference to Figs. 15 and 16, has a dog 11-1, arranged to engage the successive ones of a series of tappets or column stops 115 mounted on a rack 116 carried by the carriage 7.

This arrangement is more particularly described aud claimed in application, Serial 120.57%,813, filed August 1, 1910, and will not be described in detail at this point. Sufficient to say that the successive tappets 115 pick up the dog 11-1 and move the master wheels step by step through the intermediary of the ever 113, until the limit of the computing head is reached, when the dog 11a is tripped from the tappet 115 and the master wheel returned to its initial. position in the computing. wheel ofhighest denomination, by means of a spring 117.

In addition to rotating the master wheels by power, a tens-carrying mechanism inclicated in general by the numeral 118, which enables the carrying over of numbers between lower and higher denominations of the computing heads, is also connected up to be rotated by the motor 23. The exact structure of this tens-carrying mechanism is more fully cescribed in a prior application of Degener and Saunders, Serial No. 661916 1, filed December 23, 1911, and forms no part of this invention. Sufficient to say, however, that the action depends upon the rotation and direction of rotation of an elongated barrel gear 119 (Figs. 8 and 9), which is relative movement is proconnected by a gearing indicated in general at 120, to a shaft 121, in the case of the upper computmghead 26, and to a corresponding shaft 122, in the case of the lower tions in which either one of the bevel gears is clutched to the shaft 127. The bevel gear 1241 for the tens-carrying mechanism for the lower computing head 27 likewise meshes with a pair of oppositely-faced bevel gears 129 and 130, which may also be alternatively clutched'to the shaft 127 by means ofa sliding clutch 131, which. is splined on the shaft 127. The shaft 127 is driven from a shaft 132 by means of a pair of meshing bevel gears 133 and 134C. The shaft 132 is driven from the shaft 8% by means of meshing bevel gears 1.35 and 136.

Vi e have thus far described the mechanism as if we assumed that the motor was constantly rotating. the case. The motor 28 is only started in action when a numeral key is depressed. For

this purpose, the cam arm 16 (Figs. 1 and 11), which enablesthe operation of the ac tuator or striker 23 from the supplementary source of power 48, engages a wiperor roller 137, mounted on a bell crank lever 138 pivoted at 139 (Fig. 3). The lever 138 is joined a link 140, to one end of a lever 14:1 pivoted intermediate its ends and carrying, at its opposite end, a bearing roller 142 made of some non-conducting material, such as hard rubber. The bearing roller 142 is arranged to engage one of a pair of electric contacts 143 and 1 14:, to bring about an engagement therebetween, so as to form a switch completing the electrical circuit, represented by i iresl lc, to the motor 28. The contacts 143 and 1 51 are made of spring strips and are mounted in any suitable manner on an insulated block 1&6, so that they will automatically spring apart when the pressure on the contact strip 143 is relieved by a return of the lever 141.

This mechanism not only completes the ircuit through the electric motor 28, but also brings into play, a special or supple In ry locking mechanism (Fig. 11), which prevents the depre sion of auotl' numeral key or of the same numer. until the computing action which started by the numeral key just depressed,

This, however, is not 1215; been im e upp r computing head 26, which tor V t 1: of eoinouting Wheels, nioi :i the lower computing in a loop or u .i -1 i: .L s h it s the traveling inasten m e 5 liiil; is normally unoer a o to such a position closing the cont 14-3 The Leeks 161 ant. have their teeth 21ml the c 3 located at intervals corresponding to the The lie step 1 of the trm'eliiig element; end, to of the res oinputing heads. That is which, 9 i to say, the troveli g elem the cornon a huh O, Wiiic pi: t pitlng heels, as his hee above ing for h .ut unlike the seare 1ll0f3 i step by etc; o rent or ith 'o the chrriage to hri-g the master Wheels uction is solely into coop-er ticn the successive com- 15 "ering QlSlllQIlt,?-J1tl p v neii'l- The teeth of slots in the hub then are located at 0' ed across the lutOi'VfllS from one another, eorres ncling center or z to the e the computii whee", keys is do "which may, if lesired, corresp Rd to cli 20 the locking tar es equal to the letter-space nioreineits 5 y r :em 21 across of th huh then "he n1:- ,rther acts to peiinit a rotation T shirt 727 mm lfi acts to perini ttii: g :i

0 1 nientary lOClI- rite: to at position the to c; cuter of the hub l-Q; hm l from so ch g a disruption oi. the f the iirnieral e inester wheels -with which they a 1:: P11181145, While the coinel raised ponitieii, before the computiLg not on s 0'1. The locking of ction hos ceeuecl, the spring 150 will the carriage T to orei'ent it traveling is; use the siqy sleineiitary lockinghhicle also accomplished he some time. wing acros th gxi l cent r i th It has been nien real above, that as each h 8 1, just So soou as the locking blade numeral key is struck, the heel 16 on the 35, ceriesooucliiig to the numeral hey just type bar rocks the pair of pawls 13 anal actuated, recedes to its normal position. l l through the intermediary of the univer- 40 This, then, will prevent any further nuszl frame, so as to disengage the loose 22ml moral key or even the same nuiu-rzil key; 13 from the ratchet Wheel 12, one to eu 'age from he" actuate-cl, as the lochilig blade therewith the fixed pawl 1%. In this tyge 1-31 wll iii the path of all of the E l t i looting o1 escepeineiit iiiechenism, the iii-:ecl pawl blades soon. as the ceinpuhn e ratchet Wheel 12, at suhstunhlecle 151 will t some point, that t 161" is no u ive position with tmveliiig movement of the curria E11Cl1&Z-S111. How, in order that the ii) i e h T I revolting elements or not return, even otter the numeral he I" I w returi to its the rest of ti Zn orcl 1 the oomph. which hroug" t e its position 50 eel 12 has returnee, una feed I zctioli liar; ceoretl, ths tion is lneetcd thereto, a cum with this com arm "o to their noru'iel l; lever 166 is err sp 6?, so that it nor 3 tends to occiey the dottetl-linc position shown ll 7, corresponding to a locking of the carriage 7 against inoven'ieiit. 13

' act, bringii -167-when nor so as to hold the line peer to the the in J 1 l a pa an 7 and 10), wine 1 171 en ging s 7 a ,l 173. Ellis 0} v osite end or the lever 113 is 6. also provided w a segment 14%, engaging a t 1 a rack 14:,- on .1 ie bar e9.

It will thus seen that when the spring 18 raises the bar it not only rocks the shafts 57 and 158 to lock the traveling elements of the computing llc-ZlClS against movement, but it also swings the spiral cam 169 to such a position that the O position thzi t a an and the fixed dog 11 in engagement with the escapement wheel 12, preventing a travelin movement of the carriage until the siart 17 and the bar 19 have been returned to their normal positions, which takes place after the con'iputing actions started by an actua ed numeral key have been finished; that is to say, after the number corresponding to the numeral hey actuated has been run up on the computing heads.

In order to bring about an unloclr'ng of the traveling elements of the computing heads, the numeral keys and the carriage, it i necessary to return the bar d9 and the shaft 17 to their normal positions against the tension of the spring 18, and at the same time retensioning said spring. For this purpose, advantage is taken of the final movement before stopping of the valuating or index-wheel 25.

it has been shown above how the valuatin g wheel 25 is oriven from the spur-gear 68 as soon as a new pin has been set up and the old pin re tore' nornzal position. As soon as the valuating wheel 25 starts in action, one of the pins 2 1 (Figs. 1, 3 and 21 to 27 inclusive), engages acam head 17 6 on a shifter 177, pivoted at 178, forcing it from the normal position shown in Fig. 21 to the position shown in Fig. 22, wherein a catch 179 thereon falls behind an car 180 of a latch 181, which is drawn up by a spring 182. lhe latch 181 is pivotally mounted at 188, on a compensating lever 18. which is 31V- otally mounted t 185, on a clutch-closer 186 pivoted at 187. he compensating lever 18% is also connected to the clutch-closer 186 by a spring 188, forming a semi-positive connection.

When the shifter 177 is thus positively connected to the clutch-closer 186, the shifter may actuate the clutch-closer to force a clutch element 189 splined on the shaft 132, into engagement with a clutchelement 190 on a sleeve 191, which is loosely mounted on the shaft 132 and against the tension of a spring 192, which normally tends to spread the clutch elements out of engagement with each other.

It will be noted at this point, that the compensating lever 18%, which really forms a part of the clutch-closer 186, is thus loosely connected so as to permit the teeth of the clutch elements 189 and 190 to settle properly in o engagement with eachother.

In order to give the necessary movement to the shi ter 177 after it has engaged the latch 181, so as to close the clutch by actuatinc so that a lug or enlarged head 19% (Fig. 1)

on this arm 193, will engage with the newlyset pin as it comes around to its stopping position corresponding to the location of the gap formed by the set pin on the opposite side coming into register with the spurwheel 68. The set pin 2 1 will come into engagement with this arm 193 before it has en tirely finished its movement. so that, it ill rock the shifter 177 to swing the clutch closer 186 into such a position that the clutch elements 189 and 90 will be brought into engagement with each other in the position shown in Fig. 25, thereby forming a positive drive between the shaft 132 and the sl eve 191. Incidentally the head 176 On shifter 177 comes between'two pins 2 1, and accuratelv determines the sto opin oint of the wheel 25.

It will be noted in passing that when the shifter 177 was forced down by the initial r0- tat-ion of the pin-wheel 25, the arm 193 thereon engaged the top edge of the pin-restoring finger 71, forcing it down from the position shown in Fig. 21 to the position shown in Fig. 22 a st the tension of spring 72, the finger 11 being slidingly and pivotally mounted by having a slot 195 engaging a pm 196. The nnger 41 also has a loose connection witn the pin 196, permitting a transverse movement, so that as the newly-set pin 24 comes around, it can cam the finger 71 sidewise out of the way to the position shown in Fig. 23. The spring 72 is arranged not only to return the finger out of engagement with the pin it has restored, but also to lift it to its uppermost position, and swing it back to its normal position resting against a 7 7 of which it is capable, namely: inwardly, to

restore the previously set pin; downwardly, under the impulse of the shifter 177, and,

sidewise, under the camming action of the newlyset pin coming into its stopping position.

The whole purpose of connecting up the sleeve 191 to the shaft 182, so as to be driven thereby, is, as has been mentioned above, to retension the spring Q8 and unlock the parts previously locked at the be inning of the computing action. To accomplish this, the sleeve 191 is provided with a cam 198, which as the sleeve rotates engages a cam follower 199 in the form of a roller rotatably mounted on a double bell crank 200 (Figs. 1 and 8). he bell crank 200 is pivoted 201 and held in a normal position by a spring 202, engaging one arm 208 of the bell crank. Another arm, 20%, of this bell crank is provided with a slot 205, into which extends a lug 206 on the extension 152 of the bar 19.

it will be noted that the cam 198 is a double cam and finishes its action in less than a half of a revolution of the sleeve 191, so that it takes but half of a revolution of the shaft 182 to oscillate the bell crank 200 its fullest extent, thereby forcing down the extension 152 and the bar 49 its fullest extent. This action naturally reverts the shafts 157 and 158 to bring the locking dogs 159 and 160 out of engagement with their respective racks 161 and 162, thus freeing the tr veling elements of the computing heads 28 and 27 so that they can subsequently move on to bring the next computing wheels into register with the master wheels.

The movement of the bar 49 downward not only retensions the spring 18 but reverses the shaft 17 and brings it back to its normal position. Under these conditions, the earn 7 9 will once more force the finger 80 and the shifting lever 81 outagainst the tension of the spring 82-, disconnecting the clutch elements 7 7 and 7 8, thereby stopping the drive of the spur-wheel 68 from the motor 28.

The counter-rotation of the shaft a7 is permitted by the clutch element 55 slipping by the clutch element 5 1-, against the tension of the spring 56. This counter-rotation of the shaft 17 will also move the roller 70 away from the pin-restoring finger 71, per-- mitting the spring 72 to return the pin-restoring finger 71 to its normal position.

In addition to these actions, the cam arm will return to its normal position enabling the spring 11 to retrieve the striker 28, so that the mutilated ring 88 will return to its former position the particular interponent 22 which was forced forward by the hammer or striker 28, to start the computing action,

It is desired to prevent the breaking of,

so that the motor may run until the computing action is entirely completed, and maybe a short time subsequent thereto, whereby it the numeral keys are repeatedly struck, the action of the motor will be substantially continuous. To do this, the arm 20% of the double bell crank 200 is provided with a pin 207, which engages the bottom of a slot 208 in a thrust link 209 toward the end of the downward rocking movement of the arm so as to prevent the return 01 the following roller 187 to which the link 140 is secured. The following roller 187 is secured on the bell crank 188, which is connected to the thrust link 209. This then prevents the return movement of the lever 1 1-1 with the return movement of the cam arm 416 and the shaft d7. As soon, however, as the roller 199 drops oil the cam 198, the double bell crank 200 will return, permitting the return of the roller 187, and thus permitting the reverse oscillation of the lever 1411, where by the contacts 1&8, 141 will separate themselves, and the special locking blade 151 will be withdrawn from its locking position. The return of the bar l9 will necessarily rock the lever 178, to rotate the shaft 170, and thus rock the bell crank 168 against the tension of the spring 167, so as to permit the loose pawl 18 to be engaged by the escapement wheel 12, permitting a step movement of the carriage 7 an extent determined by the movement of the loose pawl 18.

After all the locking parts have been rendered ineffective and the spring 48 retensioned ready to initiate a new computing action, it is desirable to disconnect the clutch elements 189 and 190. For this purpose, the hub 191 has formed thereon, a double earn 210 (Figs. 21 to 27), with the arms so arranged that as a semi-revolution of the sleeve 191 is completed, one arm of the cam 210 will engage the latch 181 to disengage the same from the catch 179, permitting the clutch-closer 186 and the clutch element 1 2 to return to their normal positions under the tension of the spring 189. This action will also bring the extended surface of the lug 180 on the latch 181 beneath the catch 17 9 ready tov be subsequently reengaged with the catch by a future rocking movement of the shifter 177.

It is not always desirable that the numeral keys 8 shall be capable of controlling the computing mechanism. That is to say, it is sometimes desirable that the numeral keys be free to actuate the typewriting mechanism without any computing. For this purpose, a controlling mechanism is provided, whereby the carriage may automatically govern, by its position, the capacity of tie numeral keys to control the computing mechanisn This automatic the circuit to the electric motor immediately controlling mechanism may in turn be rendered .efiective or inefiective by manual means actuable at will in a selective manner.

Considering this mechanism specifically and with reference to Fig. 5, it will be seen that the tripper 64, which starts the computing action when any one of the numeral keys is depressed by permitting a rotation of the shaft 47 under the impulse of the spring 48, is so mounted that it can be shifted to an ineffective position, as shown in dotted lines in Fig. 2.

To enable the adjustmentof the tripper 64 between active and inactive positions, there is provided a shifter 211, which has an 0pening through which the tripper is passed, permitting it to play in the shifter and yet enabling the shifter to adjust the tripper from one position to another. The shifter 211 is shown in the form of a bell crank lever, having connected to one end thereof, a link 212, which is connected at its'opposite end to a double bell crank compensating lever 213, pivoted at 214, through the intermediary of a lever 228 and a link 229. The movement of the bell crank lever 213 is limited by having one arm thereof forked to form two tines 215 and 216, extending on opposite sides of a fixed stud 217. The compensating lever 213 is not positively actuated but is under a tendency to move in one direction or the other, owing to the tension of a spring 218, according to the direction of pull on this spring. The direction of pull on this spring is determined by a pair of adjustable segment gears 219 and 220, which mesh with each other and are adjustable from the position shown in Fig. 5 to the .position shown in Fig. 6, by means of a finger-piece 221, to determine the effectiveness of this controlling mechanism.

It will be seen that in the position shown in Fig. 5, the spring 218, which is secured to the lower segment gear 214, tends to draw the segment gear 214 and the lower arm of the lever 213 toward each other. To overcome this tendency, a second spring 222 is provided, which engages a loosely-mounted interponent lever 223, which is provided with a pin 224 engaging on the under side of an arm 225 of the compensating lever 213. The spring 222 is stronger than the spring 218, so that it overcomes any tendency of the spring 218 to draw the segment 220 and the lower arm of the lever 213 toward each other. To do this, the interponent lever 223 is provided with a toe 226, which engages a pin 227 on the segment 220. It will thus be seen that inasmuch as the inteponent lever 223 engages both the segment gear 214 and the lever 213, that it overcomes the tendency of the spring 218 to draw the segment 220 and the lower arm of the lever 213 toward each other. The segments themselves are prevented from further movement, due to the tension of the spring 218, by enlarging the end teeth of the segments, so that they will not properly mesh with each other.

It will be'noted in passing that the spring 218 acts in either position of adjustment of the segments, so that it always tends to draw the lower arm of the lever 213, whether in the position shown in Fig. 5 or in the position shown in Fig. 6, toward the segment 220.

It will thus be seen that inasmuch as the spring 222 is stronger than the spring 218, it will normally act to hold the lever 213 in the position shown in Fig. 5,'if the gears 219 and 220 are in the position shown in Fig. 5, so that the shifter 211 will be in its raised positionshown in dotted lines in Fig. 2 and in full lines in Fig. 5. That is to say, under normal conditions, the tripper 64 is raised to its ineffective position.

In order then to permit the tripper 64 to fall to its full-line position shown in Fig. 2, that is, to its effective position, it is necessary to overcome the tension of the spring 222, and permit the action of the spring 218. For this purpose, there is connected to the pin 224 on the flo a-ting lever 223, a link 230, which is rocked by a bell crank 231 when a link 22 is pulled upon. The link 232 is con nected to a lever-233, overlying one arm 234 of a bell crank lever 235, the other arm of the lever being extendedout in the form of a plate with an overturned end, so as to form a bearing surface of considerable extent, indicated at 236. This surface is shown, in this instance, to be composite, that is, formed of two plates 237 and 238, so that the extent thereof may be varied according to the length of the computing zone desired. At any rate, the ends of the plates forming the bearing surface 236, are beveled, so as to properly engage one or more of the tappets or stops 115, adjustably mounted on the rack 1 6, carried by the carriage 7.

It will be seen that when the back end of one of the tappets 115 comes into engagement with the bearing surface of the bell crank lever 235, it will cam the same rearwardly rocking the bell crank lever, so as to raise the arm 234, and thus rock the bell crank 231, which will pull down on the interponent lever 223. This action will stretch the spring 222, permitting the spring 218 to act, at the same time forcing the segment 220 slightly around, so as to insure the bringing of the lower part of the lever 213 over toward the left, as viewed in Fig. 5. This will permit the shifter 211 to rock down into its full-line position shown in Fig. 2, enabling the tripper 64 to drop into alinement with the contact screw 65 on the dog 52. Thus, so long as one of the tappets is in engagement with the bearing surface 236, and. with the segments 2'19 and 220 in the position shownv in Fig. 5, then the tripper 64 will be in its effective position in which any of the numeral keys can cause it to trip the dog 52, permitting a rotation of the shaft 47. Each tappet 115 determines, by engagement with the edge 236, a computing zone solely during which engagement, computing can take place; at all other times, the numeral keys are incapable of actuating the computing mechanism.

By adjusting the segments 219 and 220 from the position shown in Fig. 5 to the position shown in Fig. 6, even when a tap pet 115 is in contact with the bearing edge 236, no computing action can take place. The reason for this is that the spring 218 is on the opposite side oi the pivot 214 and exerts all its tendency to pull the lower one of the iever 213 to the right. That is to say, to a position corresponding to the raising of the shifter 211 and the tripper In considering the operation of the device, if it is desired to merely type-write without computing, the finger-piece 221 would be manipulated to the position shown in Fig. 6, so that the shifter 211 would be held in its raised position preventing the tripper 64 to drop down to its eitective position. lVith such a relation of the parts it would be immaterial whether or not any of the tappets 115 came into engagement with the zone-computing bell crank 235, as there would be no tendency to drop the tripper 64 to its effective position under such conditions.

It, however, it is desired to simultane ously compute as well as typewrite in diiferent zones along the work-sheet, it is necessary to adjust the manual controlling mechanism including the segments 219 and 220 to the position shown in Fig. 5, wherein whenever one of the tappets 115 comes into engagement with the bearing edge 236 of the Zone-controlling bell crank 285, then the tripper 64 will be allowed to fall down, by reason of the fact that the shifter 211 is rocked down to its full-line position shown in Fig. 2. Under this condition of affairs, whenever a numeral key 2 is struck, not only will the type action be brought into play to strike the numeral on the worksheet on the platen, but the corresponding interponent 22 will be shifted from an ineffective position to an elfective position. \V hen this has been accomplished, the furthe movement of the numeral key will cause the block 20 associated therewith, to shift the collar 59, and thus plunge the tripper 64 forward, until it en ages the contact screw 65, thereby removing the locking dog 52 from engagement with the ratchet wheel 53. When this takes place, the shaft 4'? will be free to rotate under the impulse of the auxiliary source of power represented by the spring 48, which forces the bar 49 upward. The extent of rotation, however, is but one-fifth of a revolution of the shaft 47, inasmuch as the tripper 64 is moved from an interfering position by the deflector 67 rotating around with the shaft 47. This permits the dog 52 to snap back and engage the next tooth on the ratchet wheel 53, which is located a fifth of a revolution from the previous tooth.

During the rotation of the shaft 47 the extension 152 on the bar 49 was moved upwardly with the bar 49, so that it rocked the shafts 157 and 158, bringing the locking dogs 159 and 160 into engagement with their locking racks on the traveling elements of the computing heads. The traveling elements are thus locked from traveling movement, so that there will be no interfering action during the running up of the number corresponding to the numeral key actuateo on the computing wheels of the com puting heads.

The carriage 7 is at the same time locked against movement by the cam 169, which is likewise controlled from the bar 49, moving away from engagement with the arm 168, so that the arm 165 is free to move forward into the dotted-line position shown in Fig. 7, under the propulsion of the spring 167, so as to hold the fixed dog 14 in locked engagement with the escapement Wheel 12.

While this locking action is going on, and, '11 tact, before it is completed, the cam arm 46 rotates with the shaft 47, so as to pull the striker or hammer 23 against the tension of the spring 41, whereby the particular interponent which has been placed to its effective position, will be plunged forward against the apposite index pin 24, project "it to its set position on the opposite side oi the wheel 12. lVith the movement of the cam arm 46, the roller 13'? and the lever 138 will be moved by the cam arm, so as to rock the lever 141 and thus bend the spring contact 143 into engagement with the contact 144, closing the circuit to the motor 28, thereby inciting it to action. The rocking of the lever 141 also permits the spring 150 to act, whereby the special locking blade 151 will be sprung in as far as it can go; that is to say, until it comes into contact with the locking blade 35 of the particular selector 1 which happens to be in action. This iocking blade 151 will take the place 01? this selectonlocking blade in case the nu meral key actuated is returned to its normal position before the computing action has ceased, thereby preventing t 113 and any other numeral key from being actuated until the computing action is finished.

During the rotation. of the shaft 47, the cam 69 was carried around therewith, so that the pin-restoring finger 71 was forced against the previously set-up pin, so as to complete the mutilated gear formed by the index pins at a point where the spur-wheel 68 is located. At the same time, the cam hump 79 on the cam 69 moves away from the finger 80, so as to enable the spring 82 to bring the clutch elements into engagement with each other, thereby completing the drive between the shat 7 3 and the bevel gear 76, and thus between the spur-wheel 68 and the motor 28.

As the spur-wheel 68 rotates, it will engage the pins 2 1, inasmuch as the mutilated gear is now completed at this point, and rotates the valuating wheel 25 until the next gap therein comes in apposition t0 the spurwheel 68. Thisgap is formed by the pin just set up, and is located at a distance from the spur-wheel corresponding to the value of the numeral key just struck. This rotation will be transferred through the inter-connected gearing to the master wheels in the computing heads, whereby the computing wheels in engagement therewith at the particular instant will be rotated a corresponding distance to add or subtract the numeral corresponding to the key struck.

The tens-carrying action may continue on as is well known in this type of machines, subsequentto the running up of the number.

As the pin which has Just been set up ap proaches its stopping position, corresponding to the register of the gap which it produces on the valuating wheel 25 with the spur-wheel 68, it will engage the shifter 177, which has previously been rocked forward by one of the other pins 24: to such a position that its catch 179 is caught by the latch 181 connected to the clutch-closer 186. The set pin going to its home position, will crowd the shifter 177 before it, rocking the clutchcloser 186, so as to make a driving connection between the shaft 132 and the sleeve 191. This sleeve will then rotate, so that the one arm of the cam 198 thereon, will rock the bell crank 200 to force down the extension bar 152, and thus the bar 19. -This action will retension the spring A8, returning the shaft 47 and all connected parts to their normal positions. At the end of this action the special locking blade 151 will be withdrawn, and the circuit to the motor broken. As the cam 198 completes its action, the cam 210, also connected to the sleeve 191, is rotated, to bring one arm thereof to such a position that it will disengage the latch 181 from the shifter 177, permitting the shifter and the clutch-closer 186 to return to their normal positions, wherein the sleeve 191 will be operatively disconnected from the shaft 132. 7

As all of the parts have thus been returned to their normal positions and the computing action silenced, the machine is ready to permit the striking of a second numeral key to run up another computation corresponding to this newly actuated numeral key.

Variations may be resorted to within the scope of the invention, and portions of the improvements may be used without others.

Having thus described my invention, 1 claim:

1. The combination with a typewriting mechanism including a traveling carriage, with an escapement for said carriage having a fixed pawl preventing a movement of said carriage, of a computing mechanism including one or more computing heads and mechanism for running up numbers on said computing heads, a bracket on said fixed pawl, an arm engaging said bracket, an arm secured to said first-mentioned arm, a spring normally tending to force said first-mentioned arm to a position tending to hold said fixed pawl in its locking position, so as to prevent a traveling movement of said carriage, a spiral cam engaging said secondmentioned arm and normally overcoming the tendency of said spring, a shaft for said spiral cam, a gear on said shaft, a reciprocatory bar, connections between said gear and said bar, a spring normally under a tension, tending to move said bar so as to rotate said cam, to enable the movement of said fixed pawl to its effective position, and means brought into play at the initiation of a computation for enabling said secondmentioned spring to act.

2. The combination with computing mechanism, of actuating mechanism therefor, means controlling the action of said actuating mechanism, including a driving element, a driven element, a clutch connection between said elements, a spring normally interrupting said clutch connection, a clutchcloser for overcoming the tension of said spring to connect said driven element in driving relation with said driving element, a compensating lever pivotally mounted on said clutch-closer, a spring connecting said compensating lever with said clutch-closer,

a latch pivotally mounted on said compensating lever, a spring for said latch, a shifter mounted to engage said latch and movable to shift said clutch-closer through the intermediary of said latch and said compensating lever, and means for disconnecting said latch from said shifter after the functions of said driven element have been accomplished.

3. The combination with a valuating member having a series of pins settable from an ineffective position to a computationcontrolling position, of a pivoted pin-restoring finger for returning a set pin to its.

unset position, said pin-restoring finger being so mounted on its pivot as to have a three-way movement to unset said pins and to avoid said pins during a motion thereof, said movementcomprising a pivotal movement, a sliding movement in the plane of 

